Planing or scarifying mechanism



. I 1,634,144 June 28 1927' F. M. HARGRAVE PLANlNG 0R` SCARIFYING MEGHANISM Filed Jan. 25, 1927 2 sheets-sheet 1 A TTORNE Y.

June 2s, 1927,

1,634,144 F. M. HARGRAVE PLANING OR SCARFYING MECHANISM Filed Jan. 25J 1927 2 Sheets-Sheet 2 Q NVENTOR. 4 2 Ni '/Y/Yafyyfwwe,

I j ATTORNEY.

Patented June 28, 1927. i

UNITED g 1,634,i44i` Farin nnnRiLnHARGnavn, orcnnan zaarrns, IOWA.

rLnNrnG 0R scAnIrYInG' MnCIrANIsM;

Original application yfiled. September 1.5, 1925, Serial No. 576,508'. Divided and ,this applicationv led January 25, 19.2.7.

/This invention relates to' road building machines, more particularly to the surface planing or scarifying mechanism thereof, and is a ldivision of my application filedk September 15, 192,5, Serial No. 56,508, and the invention has for its object, toprovide in a manner ris-hereinafter set forth, for planing or scarifying the surface of a roadway, street or pavement.

Further objects of the invention are to accordance with'this invention, but it is tol be understood that changes,` variations and modifications can be resorted to whichl fall within thescope of the claims hereunto appended.M i l i In theV drawings vwherein like reference characters denote corresponding' parts throughout the :several vi'ews'z- 1 'Figure l 1s atop plan view of a planer or scaritier mechanism, 1n accordance 'with this invention, for the purpose of planing or' y scarifying thesurface of a roadway, street or pavement and Vfurther illustrating .the adaptation .of the mechanism in connection with a mobile support or rather tlie'lside members of the latter. i

lFigaire 2 is a side elevation thereof,show-Y ing the adaptationpfA the mechanism-1n connection with the side members ofthe mobile support. Figure. 3 is a cross sectional view mechanism. i V i Figure'l is a'section Online -llFigure 1. Before lspecifically describing the elements of the planer or s carifying mechanism, *is thought advisable to briefly refertothefunctionand arrangement: thereof. This mechanism comprises sets of heavy steel planer of' the blades, rigidly yheld vin position and with the cutting'edge of each'bladesetat right angles with respect tothe transverse axis ofl the machineor mobile support. Each set of serial No.' 163,493;

blades is' so arranged that the length of the cutting edge of one blade ispositioned to place Vthefright end'fof 'each cutting edge directly behind the left end of the cutting edge ofthe next blade to the right. The resultis that every inch of street' surfaceis planed by -a blade and there is space lleftV between the blades for the passage of `loose material. The blades of earchset are independently adjustable from'a: vertical stand@ point and both sets are bodily adjustable.

A planer or s'carifying` mechanism vin accordance with this inventionis adapted'to be vcarried by a ymobile support of'anysuit A able-type, whichv may include wheelsV and runners, and bev of thetype as disclosedin my application Serial No.i56,508. Themebile support may be selffpjropelled or operated asa` trai-ler behind a'tfractor, trucker other motive power asreferred to -in my ap- T vention is adapted, canfbe ascert-aiiiied.` The dicatedf at"l andI 2Q The planer mechanism comprises a rectangular vcarrier 279 ,provided at its forwand and its rear side witha set of vertically disposedlv spaced grooves. The groovesof the forward set are indicated at 280 andtliose of" the rear set at 281. f Each' endv of the carrier Ais formed with? al pairv of superfposed` spaced Vprojectioy'ns 282, 2837 having arrangedtherebetween a= shiftingnut 284 for the carrier'279iy i i Se'cuife'd'- toj'the innerfaces ofi each side member: of the mobile support, atthe'rear. thereof, ijs apair of vertically disposed spaced supports 285and 286.- The A`supports` of7 each lpair'l are oppositely disposed; and' each is in the ...form of an" angle vbar of 'aI lengthto extendfa substantial distance above the sides ofE the mobile'supporta f Each pair of' supportswhave arrangedfbelowfthe Alower ends thereof, a combined support and bearing'blocli 287, provided with a socletQSS op'ening'at'v the' topfI thereof.A block l'287 isjsecured tothe pairoff supports bythe-holdside members f'off'themobile support are 1nfast devices 289. Secured between the upper ends of each pair of supports is a bearing block 290, provided with a vertical opening 291. riihe block 290 is arranged in alignment with the block 287. The holdfast devices for the blocks 290 are indicated at 292.

rEhe projections 282 and 283, at each end of point, and to provide for suoli adjustment a pair of simultaneously operable adjustingv elements co-act with the nuts 284 at the ends of the carrier. Each of said elements consists of a shaft referred to generally by i the reference character 294, and provided with an intermediate threaded portion 295 engaging with a ,nut 284. rThe shaft 294 extends through the block 290, projections 282, 283, nut '284 and seats in the socket V288.

""1 To arrest vertical movement of the shaft 294, it is provided with a collar or boss 296, which abuts against the bottom of the block 290. The nut 284 seats on the top of the projection 283, and has its upper face formed with a boss 297 bearinor against the lower EJ C face of the projection 282. The upper end of each of the shafts 294, above the block 290 carries a worm pinion 298. Extending transversely of the machine and journaled in bearings 299, .supported on brackets 300 which are secured to the vertical supports and 290, is an operating shaft 301, provided with a pair of `spaced worms 302, meshing with the pinions 298 for simultaneously revolving the shafts 294, to provide for the vertical adjustment of the carrier 279. The shaft 301 carries at one of its ends a hand wheel 303 to facilitate the operation thereof manually. I

r1`he planer blades of one set are indicated at 304 and those `of the other set at 305. Each of the blades is provided with an elongated shank. The Shanks for the blades 304 are indicated at 306 and those for the blades 305 at 307. rihe Shanks 306 are mounted- An adjusting screw is provided for each` of the planer blades of a set. The screws for the front set are indicated at 311 and those for the rear set at 312. Each adjusting screw rests on the top of the shank of thatblade with which it associates. Carried on the lower end of each adjusting screw is a nut 313. The nuts on the lower ends of the adjusting screws for each set of planer blades are held Vdown by a flat metallic bar 314, of the same length as the carrier, and formed withopenings 315 for the passage of the screws. Each plate 314 carries a securing means 316 which binds against the bar 314. Filler blocks 317 are interposed between the nuts 313 to prevent the turning thereof.

Each of the planer blades is of substantially triangular contour, and has its cutting edge 318 set at a slight angle with respect to the transverse axis of the machine. The cutting blade projects forwardly from its shank and the length of the cutting edge is sufficient to place the right end of each cutting edge directly behind the left end of the cutting edge of the next two to the right., See Figure 4. The result is that every inch of street surface is planed by a blade and there is a .space left between the blades for the passage of the loose material.

Although the carrier 279 is shown provided with tools of the plan-er type, it is obvious that the tool can be of other suitable form such as a scariiier. Three vertical adjustments are possible for this mechanism. One of which being that the entire machine may be raised or lowered at will on the wheels, another of which being that the planer mechanism may be raised or lowered on the frame of the machine at will and the remaining adjustment is that each individual planer blade may be vertically adjusted within the carrier 27 9 at will.

The adjusting mechanism for the carrier 279 provides for uniform elevation of each end thereof with relation to the main frame of the machine.

1t is thought that the many advantages of a planer or scarifying mechanism, in accordance with this invention can be readily un derstood, and although the preferred embodiment of the invention is as illustrated and described, yet it is to be understood that changes in the details of construction can be had which will fall within the scope of the invention as claimed.

W hat I claim is:

1. In a road building machine, a supporting structure, a non-rotating carrier ,arranged within, extending transversely of and having its ends connected therewith, a set of surface working tools mounted in the front and in the rear face of said carrier, said sets permanently disposed vertically, means detachably connected with and extending across the front and rear faces of the carrier for securing said sets thereto, and means mounted at the front and rear of the top ofthe Shi carrier for adjusting the tools to vary thek position thereof with respect to the road surface, the said last mentioned means providing for the independent vertical adjustment of each of the tools of each of the sets.

2. In a road building machine, a supporting structure, a carrier extending transversely thereof and having a set of vertical grooves in its front and in its rear, a set of surface Working too-ls mounted in the grooves at the front and at the rear of the carrier, means extending across and detachably connected to the front and to the rear face of the carrier for retaining said sets of tools in said grooves, and means mounted on the front and rear of the top of the carrier for vertically adjusting the tools to vary the position thereof With respect' to the roadsurface.

3. In a road building machine, a supporting structure, a carrier extending transversely thereof and having a set of vertical grooves in its front and in its rear, a set of surface Working tools mounted in the grooves at the front and at the rear of the carrier, means extending across and detachably connected to the front and to the rear face of the carrier for retaining said sets of tools in said grooves, means mounted on the front and rear of the top of the carrier for vertically adjusting the tools to vary the position thereof with respect to the road surface, and said last mentioned means provid ing for the independent vertical adjustment for each tool of each of said sets.

4. In a road building machine, a supporting structure, a carrier extending transversely thereof and having a set of vertical grooves at its front and at its'rear, a set of surface Working tools mounted in the grooves at the front and at the rear of the carrier, means connected to the front and to the rear of the carrier for securing said sets of tools in said grooves, means mounted on the top of the carrier for vertically adjusting the tools to vary the position thereof with respect to the road surface, and means for connecting the ends of the carrier to said supporting structure and said means further providing Vfor the vertical adjusting of the carrier relative to said supporting structure.

5. In a road building machine, a supporting structure, a carrier extending transversely thereof and having a set of vertical grooves at its front and at its rear, a set of sur-face Working tools mountedjin the grooves at the front and at the `rear of the carrier, means connected to the front and to the rear of the carrier for securing said sets of tools in said grooves, means mounted on the top of the carrier for vertically .adjusting the tools to vary the position thereof with respect to the road surface, said las-t mentioned means providing for the in` dependent vertical adjustment for each tool of each of said sets, and means for connecting the ends of the carrier to said supporting structure and further providing for thel vertical adjusting of the carrier relative to said structure.

6. A pla-ner or scarifying mechanism comprising a non-rotating carrier, a set of surface Working tools mounted in the front and in the rear face of said carrier, each of the tools of each of said sets including an elongated vertically disposed shank, the shanks of each set arranged in parallelism, eacn of the Shanks of each of the tools of each set merging at its lower Aend in a planer blade of substantially triangular contour, means abutting the front and rear face of the carrier andv detachably connected to the latter for securing said sets thereto, and means vmounted 0n the top of the carrier for yadjustingthe tools to vary the position thereof with respect to the road surface.

7. A planer or scarifying mechanism in accordancewvith claim 6, the planer bladesY of the tools of each .set having cut-ting edges thereof arranged with the right end of a cutting edge of a blade of a set positioned directly behind the left end of the cutting edge of the next blade to the right of each set.

In testimony Whereorf, I affix my signature hereto.

FRED MERRILL HARGRAVE. 

